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When we talk about boomerangs (回飞棒), we usually mean the curved devices(弯曲的设备) that return to ...
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高中英语《Unit3《Inventors and inventions》 单元测试（新人教版选修8）同步练习试题及答案 之四》真题及答案
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WhenwetalkaboutChinesecitiesthefirst_____comesinto
city
one
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Makingsmalltalkdoesn’thavetobepainfulevenifit’swit
Accordingtotheauthorthereasonwhywegowrongaboutourf
we fall to listen carefully when they talk
people tend to be annoyed when we cheek what they say
people usually state one thing hut means another
we tend to doubt what our friends say
Inmostlanguagesagreetingisusuallyfollowedbysmallta
---Todayortomorrow?---Whatareyoutalkingabout?---We
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when
what
Inmostlanguagesagreetingisusuallyfollowedbysmallta
Inmostlanguagesagreetingisusuallyfollowedbysmallta
阅读理解Doyouneedfriends?I'msureyouranswerisYesofcours
Whenwetalkaboutthe_____wenotonlymeanthesunheeartha
universe, the space
spacthe universe,
universe, space
space,universe
Doyouneedfriends?I'msureyouranswerisYesofcoursE.Ev
Doyouneedfriends?I'msureyouranswerisYesofcoursE.Ev
WhenwetalkaboutthecitiesinUnitedStatesthefirst____
one
city
that
which
Whenwetalkaboutsomeone’spersonalitywemeantheways__
how
/
which
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Doyouneedfriends?I'msureyouranswerisYesofcoursE.Ev
Wewantto_________thenewsabouttheSouthChinaSea南海.
talk about
talk to
talk with
talk
Itiswhatisontheinside____countswhenwetalkaboutwhat
where
that
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what
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were talking
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Doyouneedfriends?I'msureyouranswerisYesofcoursE.Ev
Inmostlanguagesagreetingisusuallyfollowedbysmallta
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Throughouttheworldboysandgirlsprefertoplaywithdifferenttypesoftoys.Boystypicallyliketoplaywithcarsandtruckswhilegirlstypicallychoosetoplaywithdolls.Whyisthis?A.traditionalsociologicalexplanationisthatboysandgirlsaresocializedandencouragedtoplaywithdifferenttypesoftoysbytheirparentspeersandthesociety.Growingscientificevidencesuggestshoweverthatboys’andgirls’toypreferencesmayhaveabiologicalorigin.In2002GerianneM.AlexanderofTexasA&MUniversityandMelissaHinesofCityUniversityinLondonsurprisedthescientificworldbyshowingthatmonkeysshowedthesamesextypicaltoypreferencesashumans.InthestudyAlexanderandHinesgavetwomasculinetoysaballandapolicecartwofemininetoysasoftdollandacookingpotandtwoneutraltoysapicturebookandastuffeddogto44maleand44femalemonkeys.Theythenassessedthemonkeys’preferenceforeachtoybymeasuringhowmuchtimetheyspentwitheach.Theirdatashowedthatmalemonkeysshowedsignificantlygreaterinterestinthemasculinetoysandthefemalemonkeysshowedsignificantlygreaterinterestinthefemininetoys.Thetwosexesdidnotdifferintheirpreferencefortheneutraltoys.Ifchildren’stoypreferenceswerelargelyformedbygendersocializationastraditionalsociologists’claiminwhichtheirparentsgivegenderappropriatetoystoboysandgirlshowcanthesemaleandfemalemonkeyshavethesamepreferencesasboysandgirlsTheywereneversocializedbyhumansandtheyhadneverseenthesetoysbeforeintheirlives.61.Traditionalsociologistsbelieveboys’andgirls’toypreferences________.A.arepasseddownfromtheirparentsB.arelargelyformedinlaterlifeC.havenothingtodowithgendersocializationD.haveabiologicalorigin62.ThestudybyAlexanderandHinesshowsthatmonkeys________.A.alsohaveasextypicaltoypreferenceB.alsoplaytoysashumansdoC.havenotoypreferencesD.liketoplaydifferenttoysatdifferenttime63.AlexanderandHinescarriedoutthestudyto________.A.findmoreevidencefortraditionalsociologyB.testtheintelligenceofmonkeysC.testwhethermonkeysliketoplaytoysD.findoutwhyboysandgirlspreferdifferenttoys64.Accordingtothestudyifgivenastuffeddog________.A.onlythemalemonkeysshowedinterestB.thefemalemonkeysshowedmoreinterestC.themaleandfemalemonkeysshowedthesameinterestD.neitherthemalenorthefemalemonkeysshowedanyinterest65.Masculinetoysaremainlyintendedfor________.A.boysB.adultC.monkeysD.girls
Haveyoueverbeenafraidtotalkbackwhenyouweretreatedunfairly?Haveyoueverboughtsomethingjustbecausethesalesmantalkedyouintoit?Manypeopleareafraidtosupportthemselves.DrRobertAlbertauthorofStandUpSpeakOutandTalkBackthinksit'sbecausetheirself-respectislow.There'salwaysasuperioraround---parentateacheraboss---whoknowsbetter.ButAlbertandotherscientistsaredoingsomethingtohelppeoplehelpthemselves.TheyofferassertivenesstrainingcoursesA.T.forshort.IntheA.T.Coursepeoplelearnthattheyhavearighttobethemselves.Theylearntospeakoutandfeelgoodaboutdoingso.TheylearntobeaggressivewithouthurtingotherpeoplE.Inonewaylearningtospeakoutistogetridoffear.A.grouptakinganA.T.Coursewillhelpthetimidpersontolosehisfear.ButA.T.usesanevenstrongermotive---heneedtosharE.Thetimidpersonspeaksoutinthegroupbecausehewantstotellhowhefeels.Whetherornotyouspeakupforyourselfdependsonyourself-respect.Ifsomeoneyoufaceismoreimportantthanyouyoumayfeellessofaperson.Youstarttodoubtyouranswerstoproblems.Youcangettofeelgoodaboutyourself.Andonceyoudoyoucanlearntospeakout.51.Theproblemthewritertalksaboutisthat______.A.somepeoplebuythingstheydon'twantB.somepeopleareafraidtospeakoutfortheirrightsC.therearetoomanysuperiorsD.somepeopledon'tthinkenoughofthemselves52.Thecauseoftheproblemtalkedaboutinthispassageisthat______.A.somepeoplehavealowself-respectB.thereisalwayssomeonearoundwhoknowsbetterC.salesmentalkpeopleintobuyingthingstheydon'twantD.peopledon`tshareenough53.TheA.T.Courseoften______.A.makepeopledistrusttheirownanswersB.makethingsmorefavorableforsuperiorsC.helppeopleknowasmuchastheirsuperiorsD.helppeoplebecomemoreimportant54.OnethingtheA.T.Coursedon'tdoisto______.A.sharetheneedofpeopleB.showtheyhavearighttobethemselvesC.helppeopleovercomefearD.helppeopletohelpthemselvesevenifotherssuffer55.A.goodtitleforthispassagecouldbe______.A.TheNeedtoShareB.TalkBackWhenNecessaryC.OneWaytoBuildSelf-RespectD.OneWaytoTrainSpeakingAbility
Whenwethinkaboutpeoplewhoareleadersweoftengetamentalpictureofsomeonewhoisoldersmarterandwiserthanourselves.StudiesofleadershipthoughhaveusuallyfoundthatthereisalmostnorelationshipbetweenskillasaleaderandtraditionalmeasuresofintelligencE.SomerecentresearchbypsychologistRedFiedleandhiscolleaguessuggeststhatbothintelligenceandexperiencemaybeimportant—butjustnowhowimportantdependsuponhowstressfultheworksituationisandwhatkindoftaskistobeaccomplisheD.Theresearchersobtainedmeasuresofintelligenceexperienceperformanceandstress.Overallthesevariablesdidnotrelatetooneanother.Menwithhighandlowintelligencewereequallylikelytogivegoodperformanceasweremenwithmoreandlessexperienceormoreandlessstresswiththeirbosses.Whenyoulookseparatelyatthosemenwhohavehighstresswiththeirbosseshoweverthepicturechanges.InhighstresssituationstherewasnoconnectionbetweenintelligenceandperformancebuttherewasbetweenexperienceandperformancE.Inotherwordsindifficultsituationsitwashelpfultoknowtheropes.InlowstresssituationsthefindingswerejusttheoppositE.Experiencewasnotrelatedtogoodperformancebutintelligencewas.Thatiswhenthingsaregoingwellintelligenceisveryusefulinleadership.Astudyoffirefighters’performanceunderhighandlowstressconditionsalsofoundtheexperiencedofficersperformedbestundersituationsofstress.Noneofthisisreallyverysurprising.Ifyouhaveeverhadasupervisoryjobyouprobablyfoundthatatleastasmuchenergywentintodealingwithpeopleaswentintomanagingthejobitself.Testsofintelligence—atleasttheoneswehavenow—donotpredictsuccessindealingwithpeoplE.55.Whatkindofpeoplecandothebestjobinstresssituation?A.intelligentpeopleB.experiencedpeopleC.calmpeopleD.skilledpeople56.Inthesecondsentenceofthefourthparagraphtoknowtheropesmostprobablymeans.A.tounderstandthesituationB.tocontrolthesituationC.togetridofthesituationD.tomakesurewhattodoaboutthesituation57.Inthethirdsentenceofthelastparagraphasupervisoryjobrefersto.A.amanagementjobB.anadvisoryjobC.ateachingjobD.anorganizingjob58.Whichofthefollowingstatementsistrueaccordingtothepassage?A.InstresssituationstherearenoassociationbetweenexperienceandperformancE.B.SomerecentresearchsuggeststhatmostleadersarelackofintelligencE.C.Inlowstresssituationsintelligenceplaysanimportantroleinleadership.D.GenerallyspeakingleadersarelikelytobeclevererthanordinarypeoplE.
Ifcarshadwingstheycouldflyandthatjustmighthappenbeginningin2012.ThecompanyTerrafugiabasedinWoburnMassachusettssaysitplanstodeliveritscarplanetheTransitiontocustomersbytheendof2012.It’sthenext‘wow’vehiclesaidTerrafugiavicepresidentRichardGersh.AnybodycanbuyaFerraributaswesayFerrarisdon’tfly.Thecarplanehaswingsthatunfoldforflying—aprocessthecompanysaystakesoneminute—andfoldbackupfordriving.A.runwayisstillrequiredtotakeoffandlanD.TheTransitionisbeingmarketedmoreasaplanethatdrivesthanacarthatfliesalthoughitisboth.ThecompanyhasbeenworkingwithFAAtomeetaircraftregulationsandwiththeNationalHighwayTrafficSafetyAdministrationtomeetvehiclesafetyregulations.ThecompanyisaimingtoselltheTransitiontoprivatepilotsasamoreconvenientandcheaperwaytofly.Theysayitsavesyouthetroubleoftryingtofindanothermodeoftransportationtogettoandfromairports:Youdrivethecartotheairportandthenyou’regoodtogo.WhenyoulandyoufoldupthewingsandhittheroaD.Therearenoexpensiveparkingfeesbecauseyoudon’thavetostoreitatanairport—youparkitinthegarageathomE.Thecarplaneisdesignedtoflyprimarilyunder10000feet.Ithasamaximumtakeoffweightof1430poundsincludingfuelandpassengers.TerrafugiasaystheTransitionreducesthepotentialforanaccidentbyallowingpilotstodriveunderbadweatherinsteadofflyingintomarginal临界conditions.TheTransition’spricetag:$194000.ButtheremaybeadditionalchargesforoptionslikearadiotransponderorGPS.AnotheroptionisafullplaneparachutE.IfyougetintoaveryawfulsituationitisthenecessarysafetyoptionGershsaiD.Sofarthecompanyhasmorethan70orderswithdeposits.We’reworkingverycloselywiththembuttherearestillsomeremainingstepsBrownsaiD.66.Wecanlearnfromthefirstparagraphthat________.A.peoplemightdriveacarplanein2012B.carplaneswillbepopularin2012C.bothTransitionandFerraricantakeoffandlandD.RichardGershisthevicepresidentofMassachusetts67.Ittakesthecarplaneoneminuteto________.A.foldandunfolditswingsB.meetflyingsafetyregulationsC.landintheairportD.unfoldwingsforflying68.AccordingtothepassagewhichofthefollowingisNOTtrue?A.ThecarplaneneedsarunwaytotakeoffandlanD.B.Thecarplanemayflyashighasnormalplanes.C.TomeetaircraftregulationsthecompanyhasbeenworkingwithFAA.D.PeoplecanparkthecarplaneinthegarageattheirhomE.69.Theunderlinedworditinthelastbutoneparagraphrefersto________.A.theradioB.thetransponderC.thefullplaneparachuteD.theGPS70.What’sthebesttitleforthepassage?A.CarsWithWingsCanFlyAsFastAsPlaneB.WhichToChoose:A.FerrariOrA.CarPlane?C.AMoreConvenientAndCheaperWayToFlyD.CarsWithWingsMayBeJustAroundTheCorner
HavingBreakfastOrNotWillitmatterifyoudon’ttakeyourbreakfast?A.shorttimeagoatest试验wasgivenintheUnitedStates.Peopleofdifferentagesfrom12to83wereaskedtohaveatest.Duringthetestthesepeopleweregivenallkindsofbreakfastandsometimestheygotnobreakfastatall.Scientists科学家wantedtoseehowwelltheirbodiesworkedwhentheyhadeatendifferentkindsofbreakfast.Theresultsshowthatifapersoneatsarightbreakfastheorshewillworkbetterthanifheorshehasnobreakfast.Ifastudenthasfruiteggsbreadandmilkbeforegoingtoschoolheorshewilllearnmorequicklyandlistenmorecarefullyinclass.Theresultisoppositetowhatsomepeoplethink.Havingnobreakfastwillnothelpyouloseweight减轻体重.Thisisbecausepeoplebecomesohungryatnoonthattheyeattoomuchforlunch.Theywillgainweight增加体重insteadoflosingit.Youwilllosemoreweightifyoureduceyourothermeals.56.Duringthetestthepeopleweregiven________.A.nobreakfastatallB.veryrichbreakfastC.differentfoodsorsometimesnoneD.littlefoodforbreakfast57.Theresultsshowthat________.A.breakfasthaslittletodowithaperson’sworkB.breakfasthasgreateffect影响onworkandstudiesC.apersonwillworkbetterifheonlyhasfruitandmilkD.girlstudentsshouldhavelessforbreakfast58.Accordingto根据thepassagesomepeoplethinkthatifyoudon’thavebreakfastyouwill__________.A.behealthierB.workbetterC.loseweightD.failthetest59.WhichofthefollowingisNOTtrue?A.Itisbadforyourhealthtohavenobreakfast.B.Toolittleforbreakfastandtoomuchforlunchmaymakeyoufatter.C.Ifyoudon’teatmuchforlunchandsupperyoumayloseweight.D.Themorebreakfastyouhavethemorequicklyyou’lllearninclass.
Whyshouldmankindexplorespace?Whyshouldmoneytimeandeffortbespentexploringandresearchingsomethingwithsofewapparentbenefits?Whyshouldresourcesbespentonspaceratherthanonpeopleontheearth?ThesearequestionsthatunderstandablyareveryoftenaskeD.Perhapsthebestanswerliesinourgeneticmakeup基因构成ashumanbeings.Whatdroveourancestorstomovefromthetreesintotheplainsandintoallpossibleareasandenvironments?Thewiderthespreadofaspeciesthebetteritschanceofsurvival.PerhapsthebestreasonforexploringspaceisthisgenetictendencytoexpandwhereverpossiblE.Nearlyeverysuccessfulcivilizationhasexploredbecausebydoingsoanydangersinsurroundingareascanbeidentifiedandpreparedfor.Withoutknowledgewemaybecompletelydestroyedbythedanger.Withknowledgewecanlessenitseffects.Explorationalsoallowsmineralsandotherpotential潜在的resourcestobefounD.Evenifwehavenoimmediateneedofthemtheywillperhapsbeusefullater.Resourcesmaybemorethanphysicalpossessions.Knowledgeortechniqueshavebeenacquiredthroughexploration.Thetechniquesmayhavemedicalapplicationswhichcanimprovethelengthorqualityofourlives.Wehavealreadybenefitedfromotherspin-offsincludingimprovementsinearthquakepredictioninsatellitesforweatherforecastingandincommunicationssystems.Evennon-stickpansandmirroredsunglassesareby-products副产品oftechnologicaldevelopmentsinthespacE.Whilemanyresourcesarespentonwhatseemsasmallreturntheexplorationofspaceallowscreativebraveandintelligentmembersofourspeciestofocusonwhatmayservetosaveus.Whilespacemayholdmanywondersandexplanationsofhowtheuniversewasformedorhowitworksitalsoholdsdangers.ThedangerexistsbutknowledgecanhelphumantosurvivE.Withouttheabilitytoreachoutacrossspacethechancetosaveourselvesmightnotexist.WhileEarthistheonlyplanetknowntosupportlifesurelytheadaptiveabilityofhumanswouldallowustoliveonotherplanets.ItistruethatthelifestylewouldbedifferentbuthumanlifeandcultureshaveadaptedinthepastandsurelycouldinthefuturE.56.WhydoestheauthormentionthequestionsinParagraph1?A.Toexpresshisdoubts.B.Tocomparedifferentideas.C.Tointroducepointsfordiscussion.D.TodescribetheconditionsonEarth.57.WhatisthereasonforexploringspacebasedonParagraph2?A.Humansarenature-borntodoso.B.Humanshavethetendencytofight.C.HumansmayfindnewsourcesoffooD.D.Humansdon’tliketostayinthesameplacE.58.Theunderlinedwordspin-offsinParagraph4probablyrefersto______.A.survivalchancesB.unexpectedbenefitsC.potentialresourcesD.physicalpossessions59.Whatmakesitpossibleforhumanstoliveonotherplanets?A.Theadaptiveabilityofhumans.B.Resourcesontheearth.C.Ourgeneticmakeup.D.By-productsinspaceexploration.60.Whichofthestatementscanbestsumupthepassage?A.Spaceexplorationhascreatedmanywonders.B.Spaceexplorationprovidedthebestvalueformoney.C.Spaceexplorationcanbenefitscienceandtechnology.D.SpaceexplorationmayhelpusavoidpotentialproblemsonEarth.
Whyshouldmankindexplorespace?Whyshouldmoneytimeandeffortbespentexploringandresearchingsomethingwithsofewapparentbenefits?WhyshouldresourcesbespentonspaceratherthanonconditionsandpeopleonEarth?ThesearequestionsthatunderstandablyareveryoftenaskeD.Perhapsthebestanswerliesinourgeneticmakeup基因构成ashumanbeings.Whatdroveourancestorstomovefromthetreesintotheplainsandonintoallpossibleareasandenvironments?Thewiderthespreadofaspeciesthebetteritschanceofsurvival.PerhapsthebestreasonforexploringspaceisthisgenetictendencytoexpandwhereverpossiblE.Nearlyeverysuccessfulcivilizationhasexploredbecausebydoingsoanydangersinsurroundingareascanbeidentifiedandpreparedfor.Withoutknowledgewemaybecompletelydestroyedbythedanger.Withknowledgewecanlessenitseffects.Explorationalsoallowsmineralsandotherpotential潜在的resourcestobefounD.Evenifwehavenoimmediateneedofthemtheywillperhapsbeusefullater.Resourcesmaybemorethanphysicalpossessions.Knowledgeortechniqueshavebeenacquiredthroughexploration.Thetechniquesmayhavemedicalapplicationswhichcanimprovethelengthorqualityofourlives.Wehavealreadybenefitedfromotherspin-offsincludingimprovementsinearthquakepredictioninsatellitesforweatherforecastingandincommunicationssystems.Evennon-stickpansandmirroredsunglassesareby-products副产品oftechnologicaldevelopmentsinthespaceindustry!Whilemanyresourcesarespentonwhatseemsasmallreturntheexplorationofspaceallowscreativebraveandintelligentmembersofourspeciestofocusonwhatmayservetosaveus.Whilespacemayholdmanywondersandexplanationsofhowtheuniversewasformedorhowitworksitalsoholdsdangers.ThedangerexistsbutknowledgecanhelphumanbeingstosurvivE.Withouttheabilitytoreachoutacrossspacethechancetosaveourselvesmightnotexist.WhileEarthistheonlyplanetknowntosupportlifesurelytheadaptiveabilityofhumanswouldallowustoliveonotherplanets.ItistruethatthelifestylewouldbedifferentbuthumanlifeandcultureshaveadaptedinthepastandsurelycouldinthefuturE.56.WhydoestheauthormentionthequestionsinParagraph1?A.Toexpresshisdoubts.B.Tocomparedifferentideas.C.Tointroducepointsfordiscussion.D.TodescribetheconditionsonEarth.57.WhatisthereasonforexploringspacebasedonParagraph2?A.Humansarenature-borntodoso.B.Humanshavethetendencytofight.C.HumansmayfindnewsourcesoffooD.D.Humansdon’tliketostayinthesameplacE.58.Theunderlinedwordspin-offsinParagraph4probablyrefersto_______.A.survivalchancesB.potentialresourcesC.unexpectedbenefitsD.physicalpossessions59.Whatmakesitpossibleforhumanstoliveonotherplanets?A.Ourgeneticmakeup.B.Resourcesontheearth.C.Theadaptiveabilityofhumans.D.By-productsinspaceexploration.60.Whichofthestatementscanbestsumupthepassage?A.Spaceexplorationhascreatedmanywonders.B.Spaceexplorationprovidesthebestvalueformoney.C.Spaceexplorationcanbenefitscienceandtechnology.D.SpaceexplorationmayhelpusavoidpotentialproblemsonEarth.
Earthquakesaresomethingthatpeoplefear.Therearesomeplacesthathavefewornoearthquakes.Mostplacesintheworldhoweverhavethemregularly.Countriesthathavealotofearthquakesareusuallyquitemountainous.ThemosttalkedaboutearthquakeintheUnitedStateswasinSanFranciscoin1906.Over700peoplediedinit.ThestrongestoneinNorthAmericawasin1964.IthappenedinAlaska.Strongearthquakesarenotalwaystheonesthatkillthemostpeople.In1755oneofthestrongestearthquakeseverrecordedwasfeltinPortugal.Around2000peopledied.In1923averystrongearthquakehittheTokyoYokohamaareaofJapan.Ahundredandfortythousandpeopledied.Mostofthemdiedinfireswhichfollowedtheearthquake.OneoftheworstearthquakeseverwasinChinain2008.Itkilledalargenumberofpeople.TheworstearthquakeeverreportedwasalsoinChinainwhich400000peoplewerekilledorinjured.Thisearthquakehappenedin1556.Earthquakesworrypeoplealot.Thereasonisthatweoftendonotknowwhentheyarecoming.Peoplecannotprepareforit.63.Earthquakeshappen_________________.A.inalltheplacesintheworldB.onlyinthecountriesthathavealotofmountainsC.regularlyinmostplacesintheworldD.onlyinafewplacesalongthecoast64.WhenandwherewastheworstearthquakeeverreportedA.1964;Alaska.B.1556;China.C.1923;Japan.D.2008;China.65.AccordingtothepassagewhichofthefollowingisNOTtrue?A.Thestrongertheearthquakeisthemorepeoplearekilled.B.Earthquakesoftencomeunexpectedly.C.Earthquakescancausefires.D.Peoplestilldon’tknowhowtotellwhenanearthquakewillcome.66.Whatmaybetalkedaboutintheseventhparagraph?A.Howdoearthquakesworrypeople?B.Whatwillpeopledotoprepareforearthquakes?C.Howcanwesavepeoplewhenearthquakeshappen?D.Howdoearthquakeshappen?
Plantscan’tcommunicatebymovingormakingsoundsasmostanimalsdo.Insteadplantsproducevolatilecompounds挥发性化合物——chemicalsthateasilychangefromaliquidtoagas.A.flower’ssweetsmellforexamplecomesfromsuchvolatilecompoundstoattractinsectssuchasbugsandbees.Plantscanalsodiscovervolatilecompoundsproducedbyotherplants.A.treeunderattackbyhungryinsetsforinstancemaygiveoffthesechemicalsinordertoletothertreesknowabouttheattack.Inresponsetheothertreesmaysendofftheirchemicalstokeepthebugsaway——orevenchemicalsthatwillattractthebugs’naturalenemies.Nowscientistshavecreatedaquickwaytounderstandwhatplantsaresaying:achemicalsensor传感器calledanelectronicnose.Thee-nosecantellsuchcompoundsasplantsmakE.Whenplantsareattackedscientistssaythee-nosecouldhelpquicklydecidewhetherplantsarebeingeatenbyinsects.Buttodaytheonlywaytospotsuchinsectsistoinspectindividualplantsbyobservingthem.Thisisachallengingtaskformanagersofgreenhousesincludingthosethatcanhousethousandsofplants.Theresearchteamisworkingwithane-nosethatcanrecognizevolatilecompounds.Insidethedevice13sensorschemicallyreactwithvolatilecompoundsbasedontheinteractions相互作用andthenthee-nosewillgiveoffelectronicsignalsthatthescientistscananalyzebyusingcomputersoftwarE.Totestthee-nosetheteampresenteditwithhealthyleavesfromcucumberpepperandtomatoplantsallbeingcommongreenhousecrops.Thenscientistscollectedsamplesoftheairarounddamagedleavesfromeachtypeofcrop.Theseplantshadbeendamagedeitherbyinsectsorbyscientistswhomadeholesintheleaveswithaholepunch打孔器.Thee-noseitturnsoutcanidentifyhealthycucumberpepperandtomatoplantsbasedonthevolatilecompoundstheyproducE.ItcouldalsoidentifytomatoleavesthathadbeendamageD.Butevenmoreimpressivethedevicecouldtellwhichtypeofdamage——byinsectsorwithaholepunch——hadbeendonetothetomatoleaves.Withsomefine-tuning微调adevicelikethee-nosecanonedaybeusedingreenhousestoquicklyspotharmfulbugstheresearcherssay.A.devicelikethiscanalsobeusedtoidentifyfruitsthatareperfectlyripeandreadytopickandeatsaysNataliaDudarevaabiochemistatPurdueUniversityinWestLafayetteIndiawhostudiessmellsofflowersandplants.HopefullyscientistsbelievethedevicecanbringlargebenefitstogreenhousemanagersinthenearfuturE.54.Welearnfromthetextthatplantscommunicatewitheachotherby______.A.makingsomesoundsB.wavingtheirleavesC.producingsomechemicalsD.sendingoutelectronicsignals55.Whatdidthescientistsdotofindoutifthee-noseworked?A.Theyfixed13sensorsinsidethedevicE.B.Theypresenteditwithallcommoncrops.C.Theycollecteddifferentdamagedleaves.D.Theydotestsondamagedandhealthyleaves.56.Accordingtothewriterthemostamazingthingaboutthee-noseisthatitcan______.A.pickoutripefruitsquiteexpertlyB.spottheinsectsinaveryquickwayC.telldifferentdamagestoleavesD.recognizeunhealthytomatoleaves57.Wecaninferfromthelastparagraphthatthee-nose______.A.isunabletotellthesmellofflowersB.isnotyettestedingreenhousesC.isdesignedbyscientistsatPurdueD.ishelpfulinkillingharmfulinsects
About97%oftheworld’swaterissaltyandisfoundinouroceansandseas.Butaswecan’tdrinkseawaterhowcanitbeimportant?Everypartofourseasandoceanscontainsanamazingnumberofanimalsandfishthatliveatdifferentoceandepths.MostofthedifferentspeciesofanimalsandfishdependonsimpleplantsfortheirfooD.Thesesimpleplantscalledalgae海藻driftnearthesurfaceoftheoceanandusesunlighttoturncarbondioxideandwaterintofoodandoxygen.InfactalgaeproduceoverhalfoftheoxygenpeoplebreathE.Howimportantseawateris!Eachplantoranimalinourseasandoceansisanimportantlinkinafoodchain.Thealgaeareeateninlargeamountsbymicroscopicanimalswhichareinturnconsumedbylargeranimals.ThesefoodchainsaredelicatelybalanceD.Thebadnewsaboutthefoodchainsintheoceansisthattheyareunderthreatbecauseofman.Peopleoncethoughtthattheoceansweresobigthatitdidn’tmatterifwedumpedrubbishintothemorcaughthugequantitiesoffishandwhalesforfooD.Butwenowknowthisisnottrueandfishstocksintheoceanshavestartedtodrop.Thankfullytheworldistakingstepstoprotectthefutureofouroceansbyintroducinginternationalagreementstoprotectmarinehabitats.Mostcountrieshaveintroducedfishingrestrictionstoprotectfishstocksintheoceansandnewtechniquesarebeingpioneeredtocopewithpollution.FinallytheimportanceofprotectingoceansisbeingmadeknowntomorepeoplE.ThisisjustthebeginningofalongprocesstoprotecttheoceansforourfuturE.Wedependontheoceansforfishwhichareanimportantpartofthehumandiet.Howimportantseawateris!68.Whichofthefollowingistheproperorderofthefoodchain?A.smallanimals→algae→microscopicanimals→largeanimals→manB.algae→microscopicanimals→largeanimals→largeranimals→manC.smallanimals→algae→largeanimals→microscopicanimals→manD.microscopicanimals→algae→largeanimals→largeranimals→man69.Peopleusedtothinkthattherubbishthrownintothesea________.A.wouldn’tharmthefishintheseaB.wouldchangethebalanceofthefoodchainC.wouldbebrokendownintheseaD.wouldn’tdomuchharmtothesea70.Fromthepassagewelearnthat_________.A.mostfishandseaanimalsliveatthesurfaceoftheseasB.itisverydifficulttobreakthebalanceofafoodchainC.excessivefishinghascausedthedecreaseinfishstockD.itwon’tbelongbeforetheproblemsconcerningoceanswillbesolved71.Whatwouldbethebesttitleofthepassage?A.Theimportanceofseawater.B.Lifeintheoceans.C.Howtoprotectfoodchains.D.Howtodealwithseawaterpollution.
Whydomendieearlierthanwomen?Thelatestresearchmakesitknownthatthereasoncouldbethatmen’sheartsgointorapiddeclinewhentheyreachmiddleagE.Thelargeststudyoftheeffectsofageingonthehearthasfoundthatwomen’slongevitymaybelinkedtothefactthattheirheartsdonotlosetheirpumpingpowerwithagE.Wehavefoundthatthepowerofthemaleheartfallsby20-25percentbetween18and70yearsofagesaidtheheadofthestudyDavidGoldspinkofLiverpoolJohnMooresUniversityintheUK.Withinthehearttherearemillionsofcellsthatenableittobeat.Betweentheageof20and70one-thirdofthosecellsdieandarenotreplacedinmensaidGoldspink.Thisispartoftheageingprocess.Whatsurprisesscientistsisthatthefemaleheartseesverylittlelossofthesecells.A.healthy70-year-oldwoman’sheartcouldperformalmostaswellasa20-year-oldone’s.Thisgender性别differencemightjustexplainwhywomenlivelongerthanmensaidGoldspink.Theystudiedmorethan250healthymenandwomenbetweentheagesof18and80focusingonhealthypersonstoremovetheconfusinginfluenceofdiseasE.TheteamhasyettofindwhyageingtakesagreaterlossonthemaleheartsaidGoldspink.ThegoodnewsisthatmencanimprovethehealthoftheirheartwithregularexercisE.GoldspinkstressedthatwomenalsoneedregularexercisetopreventtheirlegmusclesbecomingsmallerandweakerastheyagE.51.Theunderlinedwordlongevityinthesecondparagraphprobablyrefersto________.A.healthB..longlifeC..ageingD..effect52.Thetextmainlytalksabout________.A.men’sheartcellsB.women’sageingprocessC.thegenderdifferenceD.heartsandlonglife53.AccordingtothetexttheUKscientistshaveknownthat________.A.womenhavemorecellsthanmenwhentheyarebornB.womencanreplacethecellsthatenablethehearttobeatC.thefemaleheartlosesfewofthecellswithageD.womenneverlosetheirpumpingpowerwithage
Haveyoueverhadthestrangefeelingthatyouwerebeingwatched?Youturnedaroundandsureenoughsomeonewaslookingrightatyou!Parapsychologists灵学家saythathumanshaveanaturalabilitytosensewhensomeoneislookingatthem.ToresearchwhethersuchasixthsensereallyexistsRobertBakerapsychologistattheUniversityofKentuckyperformedtwoexperiments.InthefirstoneBakersatbehindunknowingpeopleinpublicplacesandstaredatthebacksoftheirheadsfor5to15minutes.Thesubjects受试者wereeatingdrinkingreadingstudyingwatchingTVorworkingatacomputer.Bakermadesurethatthepeoplecouldnottellthathewassittingbehindthemduringthoseperiods.Laterwhenhequestionedthesubjectsalmostallofthemsaidtheyhadnosensethatsomeonewasstaringatthem.ForthesecondexperimentBakertoldthesubjectsthattheywouldbestaredatfromtimetotimefrombehindatwo-waymirrorinalaboratorysetting.Thepeoplehadtowritedownwhentheyfelttheywerebeingstaredatandwhentheyweren’t.Bakerfoundthatthesubjectswerenobetterattellingwhentheywerestaredatandwhentheyweren’t.BakerfoundthatthesubjectswerenobetterattellingwhentheywerestaredatthaniftheyhadjustguesseD.Bakerconcludesthatpeopledonothavetheabilitytosensewhenthey’rebeingstaredat.IfpeopledoubttheoutcomeofhistwoexperimentssaidBakerIsuggesttheyrepeattheexperimentsandseeforthemselves.67.Thepurposeofthetwoexperimentsisto______.A.explainwhenpeoplecanhaveasixthsenseB.showhowpeopleactwhilebeingwatchedinthelabC.studywhetherhumanscansensewhentheyarestaredatD.provewhyhumanshaveasixthsense68.Inthefirstexperimentthesubjects______.A.werenottoldthattheywouldbestaredatB.losttheirsensewhentheywerestaredatC.werenotsurewhentheywouldbestaredatD.wereuncomfortablewhentheywerestaredat69.TheunderlinedwordoutcomeinthelastparagraphmostprobablymeansA.valueB.resultC.performanceD.connection70.Whatcanbelearnedfromthepassage?A.PeoplearebornwithasixthsensE.B.Theexperimentssupportparapsychologists’ideA.C.Thesubjectsdonothaveasixthsenseintheexperiments.D.Peoplehaveasixthsenseinpublicplaces.
WiththeTeslaRoadsterandotherplugin插入式electricvehicleshittingtheroaddemandisgrowingforaccessiblerefuelingpointstorechargethem.CarbonDayAutomotiveaChicagobasedcompanyhasnowdemonstratedasolarpoweredrechargingpointknownastheSolarPlugInStationwhichletsmotoristseasilychargetheircarsusingelectricitythathasbeenproducedwithoutanyenvironmentaldamagE.TheSolarPlugInStationhasgoneonshowinChicagoaspartofthecity’sbidtohostthe2016OlympicGames.AccordingtoCarbonDayAutomotivetheSolarPlugInStationonshowinChicagoispartofthevitalinfrastructure基础设施requiredforelectricvehiclesinChicagoandwasthefocusofarecentvisitbytheInternationalOlympicCommitteE.Thesesolarpoweredelectricitypointswillbeuseddailytofuelthecity’selectricvehicleswithpowerfromthesun.ByproducingtheelectricityfrompollutionfreesolarcelltheCO2emissionsarereducedtozero.SolarenergyandelectricvehiclesareapartnershipthatisonemoresteptoreducingourdependenceonforeignoilsaysRichardLowenthalCEOofCoulombTechnologies.CoulombTechnologiesrecentlydevelopedthecomponents部件requiredforindividualrechargingstationsmarketedasChargePointNetworkedChargingStations.CarbonDayAutomotiveistheMidwestdistributorfortheChargePointstations.TheSolarPlugInStationconsistsofgiantsolarpanels电池板thatshadethetinyChargePointNetworkedChargingStation.Thesolarpanelisconnectedtoanundergroundbatterypackreadyforeverydayrefueling.WithoutthesestationsitwouldbelikedrivingaroundinatraditionalcarwithouttheavailabilityofgasstationssaysScottEmalfarbCEOatCarbonDay.Thedayoftruepluginelectricvehicleswillbeheresoonerthanmostpeoplerealizeandtheworldneedstobereadytoaccommodatethem.66.TheSolarPlugInStationisusedaspartofthebidtohosttheOlympicsmainlybecause________.A.it’senvironmentallyfriendlyB.itmakesupforthelackofelectricityC.it’sanewideaandattractspeople’sattentionD.itbringsconveniencetoelectricvehicleusers67.Wecanlearnfromthepassagethat________.A.torechargetheelectricvehiclestakesalongtimeB.theSolarPlugInStationwillcomeintousein2016C.theSolarPlugInStationhasgoneonshowinternationallyD.Chicagoispromotingtheuseofelectricvehicles68.AccordingtothepassagehowmanyofthefollowingstatementsareTRUE?A.TeslaRoadsterisakindofpluginelectricvehiclE.B.TheSolarPlugInStationusessolarpowertochargeallofthecars.C.Chicagoisacitywhichisrichinoil.D.TheSolarPlugInStationconsistsofundergroundbatterypacks.E.ScottEmalfarbisoptimisticaboutthefutureofpluginelectricvehicles.A.2.B.3.C.4.D.5.69.ThepassageimpliesthatwhentheSolarPlugInStationbecomespopular________.A.morevisitorswillcometoChicagoB.thecitizensofChicagowillbeabletogotoworkfasterC.morespaceforelectricvehicleswillbeneededD.thecostofelectricvehicleswillbelowerthantraditionalcars70.Whatwouldbethebesttitleforthepassage?A.ChicagoWillSoonBeFullofElectricVehiclesB.ChicagoCallsonPeopletoBuyElectricVehiclesC.ChicagoFightsforItsBidtoHostthe2016OlympicsD.ChicagoShowsItsSolarpoweredRechargingStations
ThesurprisingexperimentIamabouttodescribeprovesthatairisallaroundyouandthatitpresseddownuponyou.AirpressureisapowerfulforcE.Whenyouswimunderwateryoucanfeelwaterpushingonyourbody.TheairallaroundyoudoesthesamE.Howeveryourbodyissousedtoitthatyoudonotnoticethis.ThepressureiscausedbyalayerofaircalledtheatmospherE.Thislayersurroundstheearthextendingtoaboutfivekilometersabovetheearth’ssurfacE.ThefollowingexperimentisaneasyonethatyoucandoitathomE.Butmakesurethatyouaresupervisedbecauseyouwillneedtousematches.Nowfortheexperiment!Whatyouneed:·Ahard-boiledeggwithouttheshell·Abottlewithaneckslightlysmallerthantheegg·Apieceofpaper·AmatchMethod:CheckthattheeggwillsitfirmlyontheneckofthebottlE.TearthepaperintostripesandputthestripesintothebottlE.LightthepaperbydroppingaburningmatchintothebottlE.QuicklysittheeggontheneckofthebottlE.Result:AstonishinglytheeggwillbesuckedintothebottlE.Yourfriendswillbeamazedwhenyoushowthemtheexperiment.Butbecarefulwhenyouhandlethematches.WhyithappenedAsthepaperburnsitneedsoxygenandusesuptheoxygenairinthebottlE.TheeggactsasasealintheneckofthebottlesonomoreaircangetinsidE.ThisreducestheairpressureinsidethebottlE.TheairpressuremustequalizesomoreairfromoutsidemustenterthebottlE.Theoutsideairpressedagainsttheeggandthentheeggispushedintothebottle!Thisprovesthatairisallaroundandthatitispressingdownonus.59.Whyistheretheneedtotakecarewhenyouaredoingtheexperiment?A.Thebottlecouldbreak.B.Youneedtolightthepaperwithamatch.C.TheeggneedstobeshelleD.D.TheegghastobeperfectlyplacedontheneckofthebottlE.60.Intheexperimenttheburninginsidethebottlecan___.A.equalizetheairpressureinsidethebottlE.B.makeasealintheneckofthebottlE.C.finishuptheoxygeninsidethebottlE.D.producemoreoxygeninsidethebottlE.61.Howdidtheegggetintothebottle?A.Theoxygeninsidethebottlesuckedtheeggin.B.Itbecamesoftwithouttheshell.C.Theneckofthebottlewaswideenough.D.TheoutsideairpressureforceditintothebottlE.62.Theexperimentiscarriedtoprove___.A.waterpushesonyourbodywhenyouswimunderwater.B.theearthissurroundedbyalayerofaircalledtheatmospherE.C.thepressureofairaroundushasapowerfulforcE.D.theairpressureisnotequalizedaroundus.
Nowinaworldpiledhighwithsmartphonestabletsande-readerstechnologyhasenteredtheclassroominwaysunimaginablE.Takingclassescanbefuntoo.A11youhavetodoisswipeyourfingersonyourphonescreenanddownloadsameAppswhichcanmakeyourstudymorefunandefficient.Balancingstudyandplayinacollegesettinghasneverbeeneasy----andwiththefollowingfewappsit'llbetoughtotellthetwoapart.EvernoteUse:note-takingCanbeusedonPhone/iPad/iPodtouchAndroidBlackBerryPalmOSandWindowsPhone7PricefreeIt'shardtoimaginethatwithallthemagicalgadgets新发明theeagerstudioustypeswouldstilltakeoutanotepadpencilandhighlighter-andtakenotesinclass.Whileit'snotanactualplannerorcalendarAppifyoutakenotestostayorganizedthenEvermoteisforyou.ThemainthingaboutEvernateisthatallofyournotesareautomaticallysentintothecloud云储存平台上---andthenyoucanaccessthemfromanyweb-connectedcomputerviatheEvermoteApporawebbrowser.Evermotealsosupportaudioandphotonotes-ratherhandyifyouwanttorecordyourlectureortakephotosofanyprojectednotes.Butofcourseaskforpermissionfirst.WikipanionUseresearchdatabaseCanbeusedoniPhone/Pad/iPodtouchPricefreeWikipanionPlusfor＄499or31.87yuanNowyoudon'tnecessarilyhavetogotoalibraryoranywherewithcomputerservicestodoresearchworkforyourpaperanymorE.Youcangetaccesstotheresearchdatabasesjustonyoursmartphoneortablet.WikipaniongivesyouasimplifiedversionofWikipediawithoutleavingoutanyofthesite'sextrafeatures.Thenormallinksthatyou'dseetoeachsectionofanarticlenolongeronthemainscreen.Insteadthere'sasmallicon图示影像locatedatthebottomoftheappwhichcanbeusedtoaccessallthesectionsofanarticlE.YoucanalsoopenthelinksinSafari苹果Safari浏览器.Accordingtothedevelopers'siteloadingWikipediapageswithWikipanionisalotfasterthanaccessingtheWikipediasitefromtheiPhone'sbrowses浏览器.TobehonestweagreE.ConqueringBilingualNewsListeningin7DaysUse:EnglishlearningapplicationCanbeusedon:iPhone/iPad/iPodtouchPriceForalimitedtimeyoucangettheAppforonly＄0.99---halfpricE.StilllearningEnglishwithaworkbook?ifsoyouarebehindthetimes.Get21thCenturyNewspaper'snewiPhoneAppConqueringBilingualNewsListeningin7Days.WhenyoudownloadtheApponyouriPhoneyoucanlistentothehottestbilingualnewsselectedfromthenewspaper'sofficialwebsitewww.i2lst.cnandreadbynativespeakers.Userscanenjoytheaudiobilingualnewswithsynchronized同步的subtitlesandfantasticpictureswhileimmersed沉浸inanauthenticlanguageenvironment.WithasimpletapthesentenceyouchoosewillberepeateD.ConqueringBilingualNewsListeningin7DayshasrankedNo.1ontheChineseeducationApplist.ForalimitedtimeyoucangettheAppforonly＄0.99---halfpricE.68.Thispassagemainlyaimsat_____A.advertisersB.travellersC.studentsD.teachers69.WhichofthefollowingstatementsisTRUE?A.YoucangetthelastAppmentionedforonly＄0.99----halfpricE.B.WikipanonisfreeofchargE.C.EvernotehasrankedNo.1ontheChineseeducationApplist.D.Allthesethreeprogramsareimaginary.70.Fromthepassageweknowthat________A.studentswouldstilltakeoutanotepadpencilandhighlightertotakenoteswithEvernoteB.withWikpanionyoucanrecordyourlectureortakephotosofthenotesC.accessingthe-WikipediasitefromtheiPhone'sbrowserisalotfasterthanloadingWikipediapageswithWikipanonD.withEvernoteallofyournotesareautomaticallysentintothecloud71.Whichisthebesttitle?A.HowtoBeaStudiousstudentB.TheInternetIsVeryImportantinOurLifeC.GadgetsMakeStudyFunD.It'sNecessarytoHaveaniPhone
Manyanimalsrecognizetheirfoodbecausetheyseeit.Sodohumans.Whenyouseeanappleorapieceofchocolateyouknowthatthesearethingsyoucaneat.YoucanalsouseothersenseswhenyouchooseyourfooD.YoumaylikeitbecauseitsmellsgoodorbecauseittastesgooD.YoumaydislikesometypesoffoodbecausetheydonotlooksmellortasteverynicE.DifferentanimalsusedifferentsensestofindandchoosetheirfooD.A.fewanimalsdependononlyoneoftheirsenseswhilemostanimalsusemorethanonesensE.AlthoughtherearemanydifferenttypesoffoodsomeanimalsspendtheirliveseatingonlyonetypE.Thegiantpandaeatsonlyoneparticulartypeofbamboo竹子.OtheranimalseatonlyonetypeoffoodevenwhengiventhechoicE.A.kindofwhitebutterfly蝴蝶willstayontheleavesofacabbageeventhoughthereareplentyofothervegetablesinthegarden.Howevermostanimalshaveamorevaried多样化diet.Thebeareatsfruitsandfish.Thefoxeatssmallanimalsbirdsandfruits.Thedietoftheseanimalswillbedifferentdependingontheseason.Humanshaveaveryvarieddiet.Weofteneatfoodbecausewelikeitandnotbecauseitisgoodforus.IncountriessuchasFranceandBritainpeopleeatfoodswithtoomuchsugar.Thismakesthemoverweightwhichisbadfortheirhealth.Eatingtoomuchredmeatandanimalproductssuchasbuttercanalsobebadforthehealth.ChoosingtherightfoodthereforehasbecomeanareaofstudyinmodernlifE.58.Wecaninferfromthetextthathumansandanimals_________.A.dependononesenseinchoosingfoodB.arenotsatisfiedwiththeirfoodC.choosefoodinsimilarwaysD.eatentirelydifferentfood59.Whichofthefollowingeatsonlyonetypeoffood?A.Thewhitebutterfly.B.ThesmallbirD.C.Thebear.D.Thefox.60.Certainanimalschangetheirchoiceoffoodwhen___________.A.theseasonchangesB.thefoodcolorchangesC.theymovetodifferentplacesD.theyareattractedbydifferentsmells61.Wecanlearnfromthelastparagraphthat__________.A.foodischosenforagoodreasonB.FrenchandBritishfoodisgoodC.somepeoplehavefewchoicesoffoodD.somepeoplecarelittleabouthealthydiet
TodayalmosteveryoneknowscomputersandtheInternet.ffIaskyouWhatisthemostimportantinyourlife?maybeyouwillsayComputersandtheInternet.?ThefirstcomputerWasmadein1946.Itwasverybigbutitworkedslowly.Todaycomputersaregettingsmallerandsmaller.Buttheyworkfasterandfaster.Whatcancomputersdo?A.writerhassaidPeoplecan'tlivewithoutcomputerstoday.TheInternetcamealittlelaterthancomputers.Itisabouttwenty-fiveyearslaterthancomputers.ButnowitcanbefoundalmosteverywherE.Wecanuseittoreadbookswritelettersdoshoppingplaygamesormakefriends.ManystudentsliketheInternetverymuch.TheyoftengointotheInternetassoonastheyarefreE.TheymakefriendsontheInternetandmaybetheyhaveneverseenthesefriends.Theydon'tknowtheirrealnamesagesandevensex性别.Theyaresointerestedinmakingtheunrealfriendsthattheycan'tputtheirheartintostudy.Manyofthemcan'tcatchupwithothersonmanysubjectsbecauseofthat.WecanusecomputersandtheInternettolearnmoreabouttheworlD.ButatthesametimeweshouldrememberthatnotallthethingscanbedonebycomputersandtheInternet.68.TheInternetcannotbeusedfor______A.studyingB.shoppingC.thinkingD.playing69.TheInternetwasborninabout______A.1960B.1970C.1980D.198570.WhichofthefollowingisTRUE?A.FewstudentslikegoingintotheInternet.B.StudentsusetheInternettomakeunrealfriends.C.Theseunrealfriendsoftenmeeteachother.D.StudentsknowthefriendsOntheInternetverywell.71.WhatdoesthewriterthinkoftheInternet?A.Itiswonderful.B.Itcanmakestudentsstudyharder.C.Itisnotgoodforstudents.D.Itishelpfulbutwecan'tdoeverythingonit.
Ihavethisoldclockthatbelongedtomymom.Mydadgaveittomeyearsagoaftermompassedaway.Ihavemixedfeelingsabouthavingtheclock.Iloveitbecauseitwasmymom’sbutitalsoholdssomebadmemories.Youseeitchimes.Itcountsoutthehourandringsonceonthehalfhour.Oratleastitusedto.Nowyouneverknowwhatnumberitwillring.WhenmymotherwasathomedyingfromcancersheaskedfortheclocktobeunpluggeD.Hearingthehourscountdownreallyangeredandfrightenedher.Mompassedaway.IdecidedIwantedtogettheclockfixedsoIcouldrememberthegoodhourswehadwithher.Itookittoalocalclockshoptheotherday.Iknowthishasnoparticularvalueasaclockbutitwasmymom’sandIneedtogetitfixedIsaidtotheshopowner.Iwentontodescribetheproblem.WegetalotoftheseinhetoldmE.Here’swhatIdo.Weremovetheclockworks机件andreplaceitwithabattery-operatedmovement机芯thatchimeselectronicallyhetoldmE.Youcan’tfixthis?Nowedon’thavethetimenortheparts.IthankedhimandwenthomE.Icalledafewotherplacesandwastoldthesamething.HowincrediblysadItoldthelastonedisappointedly.Howincrediblysadthatwehavebecomeasocietythatreplacescraftsmanshipwithconvenienceandeasyfixes.Wecopytheoriginalinsteadofcreatingsomethingnew.Weduplicate复制;wedon’toriginate发明.Sadlythesamegoesforourattitudetolifeitself.EachofusisanoriginaloneofakinD.Butwefinditsomucheasiertocopyanotherstylethantodevelopourown.Wearewannabes崇拜别人的人ratherthanhey-world-look-at-mes.WefailtoseetherealvalueinwhowearesowespendourlivestryingtobesomeoneelsE.61.Whydidtheauthordecidetogettheclockfixed?A.Becauseitwasareallyoldandvaluableclock.B.Becauseitwastheonlythingthathermotherhadlefther.C.Becauseitbroughthermemoriesofbeingwithhermother.D.Becauseitlefttheauthorwithmixedfeelings.62.Whatdidtheclockshopownerstelltheauthor?A.ThepartsthattheclockneededwereelectroniC.B.Itwouldcostalottorepairtheclock.C.TheyhadneverrepairedaclocklikethisbeforE.D.TheycouldonlymaketheclockelectroniC.63.Theauthorintendsto________.A.criticizetheirresponsibleclockshopownersB.criticizepeoplewhodonotvaluethingswithahistoryC.criticizepeoplewhodonothaveacreativeattitudetowardlifeD.criticizepeople’signoranceoftraditionalcraftsmanship
Whatifthosenewjeansyou’vejustboughtstarttweeting吱吱地叫aboutyourlocationasyoucrossLondonBridge?Itsoundsfar-fetchedbutit’spossible—ifoneofyourcoatsisequippedwithatinyradio-frequencyidentificationdeviceRFIDyourlocationcouldberevealedwithoutyouknowingaboutit.RFIDsarechipsthatuseradiowavestosenddatatoareader—whichinturncanbeconnectedtotheweB.Thistechnologyisjustoneofthecurrentwaysofallowingphysicalobjectstogoonline—aconceptcalledtheInternetofthingswhichindustryinsidershaveshortenedtoIoT.ThisiswhennotonlyyourPCtabletandsmartphonecanconnecttothewebbutalsoyourcaryourhomeyourbaseballcapandeventhesheepandcowsonafarm.SmartbuildingsandintelligentcarswithassignedIPaddressesarealreadymakingcitiessmarter—andsoonenoughtheentireplanetmayfollow.AtypicalcityofthefutureinafullIoTsituationcouldbeaplacewithsmartcameraseverywhereneurosensors神经监测系统scanningyourbrainforover-activityineverystreetsaysRobvanKranenburgamemberoftheEuropeanCommission’sIoTexpertgroup.ThisvisionmightstillbeyearsoffbutonebyonesmartercitiesarebeginningtocropuparoundourlandscapE.IoTadvocatesclaimthatoverallinterconnectivitywouldallowustolocateandmonitoreverythingeverywhereandatanytimE.Imagineasmartbuildingwhereamanagercanknowhowmanypeopleareinsidejustbywhichroomsarereflectingmotion—forinstanceviamotion-sensitivelightssaysConstantineValhoulifromtheHammersmithGroupastrategyconsultingfirm.Thiscouldhelpsavelivesinanemergency.ButasmoreobjectsgointothedigitalworldthefinelinethatseparatesthebenefitsofincreasinglysmarttechnologyandpossibleprivacyconcernsbecomesreallyblurreD.TheIoTchallengeislikelytogrowbothinscaleandcomplexityassevenbillionhumansareexpectedtocoexistwith70billionmachinesandperhaps70000billion‘smartthings’withnumbersinvadingthelastfencesofpersonallifesaysGeraldSantucciheadofthenetworkedenterpriseandRFIDunitattheEuropeanCommission.Insuchanewcontexttheworriesincrease:towhatextentcanmonitoringofpeoplebeaccepted?WhichprinciplesshouldgovernthedeploymentoftheIoT?72.Thefirstparagraphisusedto________.A.introduceanewkindofjeanstoreadersB.arousereaders’interestintheRFIDC.drawreaders’attentiontothenewjeansD.setanexampleofusingtheRFID73.TheunderlinedphrasecropupinParA.8canbereplacedby__________.A.appearB.cooperateC.developD.change74.WhatcanweknowaboutIoT?A.A.typicalcityinafullIoTsituationhascomeintoreality.B.TheapplicationofIoTmayinvadepeople’sprivacy.C.ThetechnologyofIoThassavedlivesinanemergency.D.IoThasbeenlargelyusedinmanycities.75.Ifthistextcontinueswhatwouldbediscussednext?A.Solutionsofdefendingpeople’sprivacy.B.ThedevelopmentoftheIoT.C.Thecontrolonmonitoring.D.Smarttechnology’sdisadvantages.
AtthebottomoftheworldliesamightycontinentstillwrappedintheIceAgeanduntilrecenttimesunknowntoman.Itisagreatlandmasswithmountainrangeswhoseextentandelevationarestilluncertain.Muchofthecontinentisacompleteblankonourmaps.ManhasexploredonfootlessthanonepercentofitsareA.AntarcticadiffersfundamentallyfromtheArcticregions.TheArcticisanoceancoveredwithdriftingpackediceandhemmedinbythelandmassesofEuropeAsiaandNorthAmericA.TheAntarcticaisacontinentalmostaslargeasEuropeandAustraliacombinedcenteredroughlyontheSouthPoleandsurroundedbythemostunobstructedwaterareasoftheworld—theAtlanticPacificandIndianOceans.Thecontinentalicesheetismorethantwomileshighinitscenter;thustheairovertheAntarcticaisfarmoreicedthanitisovertheArcticregions.Thiscoldaircurrentfromthelandissoforcefulthatitmakesthenearbyseasthestormiestintheworldandmakesunlivablethoseregionswhosecounterparts配对物attheoppositeendoftheglobearelivablE.Thusmorethanamillionpersonslivewithin2000milesoftheNorthPoleinanareathatincludesmostofAlaskaSiberiaandScandinavia—aregionrichinforestandminingindustries.ApartfromahandfulofweatherstationswithinthesamedistanceoftheSouthPolethereisnotasingletreeindustryorsettlement.66.Thebesttitleforthispassagewouldbe________.A.IcelandB.LandofOpportunityC.UtopiaatLastD.TheUnknownContinent67.AtthetimethisarticlewaswrittenourknowledgeaboutAntarcticawas______.A.verylimitedB.vastC.fairlyrichD.non-existent68.What’sthefundamentaldifferencebetweenAntarcticaandtheArctic?A.TheArcticisanoceanwhileAntarcticaisacontinent.B.TheArcticisinhabitedbypeoplewhileAntarcticaisuninhabitablE.C.TheArcticiscoveredwithicewhileAntarcticaissurroundedbywater.D.TheArcticissurroundedbycontinentswhileAntarcticaisborderedbyoceans.69.TheAntarcticaismadeuninhabitableprimarilyby________.A.iceB.calmseasC.coldairD.lackofwater70.Accordingtothisarticle________.A.2000peopleliveontheAntarcticaContinentB.amillionpeoplelivewithin2000milesoftheSouthPoleC.weatherconditionsmakesettlementsimpracticalD.onlyahandfulofnativesinhabitAntarctica
AsandstormhitGansuProvinceInnerMongoliaAutonomousRegion内蒙古自治区andBeijingonSundayreducingvisibility能见度tolessthan100metersinaffectedareas.Whenvisibilitydropstolessthan1kilometeritiscalledasandstorm.ThesandstorminMinqinblewupdustinneighboringtownssuchasBaiyinWuweiandJinchang.DustwindsalsosweptintoBeijingatmorethan20metersperseconD.Dustfirstreachedthecapital’ssuburbsat7A.m.downtownareasat9A.m.ThePalaceMuseumincentralBeijingwascoveredinthickbrown-yellowdustatnoon.Thewindswhichdieddownduringthenightbroughtthetemperaturedownto8℃belowzeroandmanyflightsputofftheirplannedtimefromthecity’sairport.AlthoughtheChineseCentralWeatherhadforecastthesandstormonTuesdayandwarnedcitizenstoprepareforitmanypeoplewereshockedbytheyellowsky.WangHongshengaseniorcitizenlivinginBeijingformorethan60yearssaidsuchweatherhadseldombeenseeninrecentyears.Inthenorthwesternpartofthecitytheskywasdarkenedbythesandforcingcarsandshopstoturnontheirlights.ItisquiterareforsandstormswhicharefrequentbetweenMarchandJunetohappeninwinterwhentheearthisfrozen.ThesandstormsinGansuandInnerMongoliadonotnecessarilymeantherewillbemoreoftheminthespringthanlastyearbutBeijingistakingitveryseriously.ItisreportedthatBeijingwillspend6billionyuaninpreventingsandstormsinthecapitalandhasalreadysetupaspecialteamtomakesurewhatcausesthem.72.Whatisthemainideaofthepassage?A.A.sandstormtookplaceinGansu.B.A.sandstormhappenedonSunday.C.Thesandstormisveryseriouscomparedtolastyear.D.Theexpertsaretryingtheirbesttodeterminethecauseofthesandstormformedthisyear.73.WhichofthefollowingdoesNOTbelongtothebadeffectsthesandstormhascausedinBeijing?A.Thetemperaturefell.B.Flightsputofftheirtimetotakeoff.C.Theairwasdirty.D.Peoplehadthreedays’leavE.74.Whydidsandstormsbegininwinterthisyear?A.Becausetherewaslittlesnowthisseason.B.Becausealotoftreeshadbeencutdown.C.Becausepeopletookfewmeasurestocontrolthem.D.ItisnotmentionedinthepassagE.75.Theauthorwrotethepassageto___.A.tellustheenvironmentisbecomingworseandworseB.explainwhatmeasurespeoplehavetakentocontrolsandstormsC.makepeoplerealizetheneedtoprotecttheenvironmentD.callonustodowhatwecantosavetheeart
TheSouthPoleisaparticularplaceontheearth.Whenpeoplestandatthetopofitlookingaroundtheywillfindalldirectionsfacetonorth.Nomatterhowtheymaketheirfirststepinwhichdirectiontheywillalwayswalktowardsthenorth.That’stosayonlynorthandsouthexistthereneithereastnorwestexists.AtthetopoftheSouthPoleanyclockorwatchkeepsgoodtimebecauseallmeridians子午线jointherE.AllkindsoflocaltimearecompletelysuitabletherE.Itisevendifficulttodistinguish区别NewYear’sEvefromNewYear’sDay.Theexplorersandscientistsfromdifferentcountriesalwaysfixthetimeaccordingtotheirown.ThereforethetimebytheirwatcheswasdifferentwhenthepeoplewithdifferentnationalitygatheredtherE.TheWinterSolstice冬至日isanimportantfestivalattheSouthPolE.ItisalwaysonJune21or22.ThisdayiscalledMidwinterFestivalonwhichthedaytimeistheshortestinayearandthenightthelongest.AllpeopleattheSouthPoleextendgreetingstoeachotherandpresentgiftstoeachother.Theyusuallygiveallkindsofcelebrations.Fromthatdayonthedaytimewillgetlongerdaybyday.60.AtthetopoftheSouthPoleyourwatchwill________.A.keepgoodtimeB.befiveminutesfastC.stopD.betenminutesslow61.Thetimebythewatchesoftheexplorersandscientistsfromdifferentcountriesis________.A.alwaysthesameB.notalwaysdifferentC.alwaysslowD.notalwaysthesame62.TheWinterSolsticeisanimportantfestival________.A.intheworldB.attheNorthPoleC.attheSouthPoleD.inChina63.OntheWinterSolstice________istheshortestinayear.A.thenightB.thenoonC.themorningD.thedaytime
IfanoisyneighborisblastingmusicatallhoursofthedayandnightdrowningoutyourphoneconversationsandinterruptingyoursleepyoucancallthepolicE.Butwhatisawhaletodo?Naturalnoisefromwaveswindrainandevenearthquakesiscommoninoceans.Unfortunatelyman-madenoisefromoilandgasdrillingsonarandshipsisalsopresent.LowfrequencynoisehasdoubledofftheCaliforniacoasteverydecadesincethenineteensixties.Themainreasonsareships’propellers螺旋桨.Theynotonlygeneratecontinuouslowfrequencysoundsomepropellerscavitate形成气穴whichmeanstheycreateairbubblesthatcollapsecreatingloudpoppingsounds.Whalesuselowfrequencycallstocommunicateacrossthousandsofmilesofocean.Theyarethreatenedbynoisepollutionbecauseitcanpreventthemfromcontactingeachotherandfromlocatingtheirfoods.Endangeredhumpbackandrightwhaleswhichusefibrousbaleentostrainfoodfromthewaterarethemostatrisk.ScientistsstudyingrightwhalesoffCanada’seastcoasthavediscoveredthatwhalesaresendingloudercallsthroughthewatertomakethemselveshearD.Becausetheyinvestmoreenergyinmakingcallstheyhavelessenergyavailableforfindingfoodandmating.OtherscientistsmeasuringwhalecallsagainstbackgroundnoisepollutionhavediscoveredthatrightwhaleshavelostabouteightypercentoftheirnormalcommunicationareA.Thiscouldseriouslyaffectsurvivalofthisalreadythreatenedspecies.Scientistsdon’thavebadgesandgunsbuttheyaretryingtocorrectthenoisepollutionproblem.Bytrackingshipsandmarinemammalsandunderstandinghownoisetravelstheyarecreatingsoundmaps.Theyhopetogetshippinglanesmovedsothatthenoisepollutionshipscreatewillnotoverlapwithareasmostimportanttothewhales.71.Whatdoesthepassagemainlytalkabout?A.WhalesareindangerbecauseofthenoisE.B.Noisepollutionisaffectingwhales.C.Naturalnoiseisgoodforwhales.D.HowtoprotectwhalesendangereD.72.ThefollowingstatementsaretrueEXCEPT________.A.YoucancallthepoliceifyouaredisturbedbyanoiseneighborB.LowfrequencynoisehasdoubledofftheCanadiancoasteverydecadesince1960s.C.Noisepollutioncanpreventwhalesfromcontactingeachotherandfromlocatingprey.D.Endangeredhumpbackandrightwhalesarethemostatrisk.73.Wecaninferfromthelastparagraphthat________.A.Someareasimportanttowhalesareoverlappedwiththeshiplanes.B.Scientistsarecreatingthesoundmapsbytrackingshipsandmarinemammals.C.Ifscientistshavegunstheycancorrectthenoisepollution.D.Scientistshaveworkedoutaplantoprotectthewhales.74.Accordingtoscientists________.A.RightwhalesofftheCaliforniancoasthavebeenindangerbecauseofthelossoftheenergy.B.RightwhalescannotfindfoodandmatefortheylosealotoflivingareA.C.Thereareabout20%ofthenormalcommunicationareasstillavailablefortherightwhales.D.Therightwhalesalwaysinvestmostoftheirenergyformakingcalls.75.Accordingtothedescriptionofwhaleswecanknowthat________.A.ThenoisemadebytheshipshasabadeffectontheareawherewhaleslivE.B.Whalescancommunicatewitheachotherbydivingintothedeepwater.C.Whalescannotfindmatesbecausetheydon’thaveenoughenergy.D.Thecommunicationbetweenwhalesisthroughlowfrequencycalls
Scientificexperimentscansometimesgowrongandwhentheydotheresultsmayrangefromthedisastroustothetroubling.OnesuchexperimenttookplaceinSouthAmericaaboutfiftyyearsago.Whetheritsfinalconsequenceswillcauseseriousdamageornothingmorethanasmalltroublestillremainstobeseen.Thestorybeganin1956whenanAmericanscientistworkinginBrazildecidedtosolvetheproblemofincreasingtheproductivityofthatcountry’sbees.HeimportedaveryactivetypeofAfricanbeefromTanzaniaandmated交配itwiththemoreeasygoingnativevarietytoproduceanewkindofbees.Thenewbeesworkedharderandproducedtwiceasmuchhoney.ItseemedthatProfessorKerrforthatwasthescientist’snamehadatotalsuccessonhishands.Thenthingsbegantogowrong.Forsomereasonasyetunseenbutperhapsasaresultofsomethingintheirenvironmentthenewbeesbegantodevelopextremelyattackingpersonalities.Theybecamebad-temperedandeasytobeangryattackedthenativebeesanddrovethemfromtheirlivingplaces.Butworsewastofollow.Havingtakenoverthecountrysidethenewbees.Withtheirdangerousstings叮begantoattackitsneighbors—catsdogshorseschickensandfinallymanhimself.A.longperiodofterrorbeganthathassofarkilledagreatnumberofanimalsandabout150humanbeings.ThiswouldhavebeenenoughifthebeeshadstayedinBrazil.ButnowtheyareonthemoveheadingnorthwardsincountlessmillionstowardsCentralandNotthAmericaandmovingatthealarmingspeedof200milesayear.Thecountriesthatlieintheirpatharenaturallyworriedbecauseitlooksasifnothingcanbedonetostopthem.56.TheresultsoftheSouthAmericanexperiment____________A.havecausedaserioustroubleB.haveprovedtobewrongC.arenotyetcertainD.arenotimportant57.Theexperimentmentionedinthispassagewasdesignedto_________A.increasetheamountofhoneyinBrazilB.makeBrazilianbeesmoreeasy-goingC.increasethenumberofbeesinBrazilD.makeAfricanbeeslessactive58.Whichofthefollowingmaybethecauseofthenewbees’attackingpersonalities?A.TheirproductionofhoneyB.TheirhardworkC.TheirlivingenvironmentD.Theirbadtemper59.Thelastparagraphimpliesthat_____A.thebeeshavebeendriventoCentralandNorthAmericaB.thebeesmaybringabouttroubleinmorecountriesC.thebeesmustbestoppedfrommovingnorthD.thebeesprefertoliveinBrazil.
FouroutoffiveparentsworrythattheirchildrenwillbecomeaddictedtoFacebookaccordingtoastudy.EightypercentbelievesocialnetworkingsitessuchasFacebookandTwitterhavetheabilitytotakeovertheirchildren’slives.OneinthreeparentsmeanwhilebelievetheInternethasthepowertorewirebrains改装大脑withoutaperson’sknowledgeandthinktheirchildrenareindangeroftheweB.Theextraordinaryfindingscomefromapollof1000parentscarriedoutbytheNominetTrustanorganizationthatpromotedInternetprojectswhichaddresssocialdisadvantages.HoweverNominetsaidtheirfindingsflyinthefaceofneurological神经学上的evidencE.TheTrustworkedwithneuroscienceandeducationexpertDr.PaulHowardJoneswhoanalysedresearchesontheInternetandsociety.Thereport—TheImpactofDigitalTechnologiesonHumanWell-being—concludedthatthereisnoneurologicalevidencetosuggestthattheInternetismoreeffectiveatrewiringourbrainsthanotherenvironmentalinfluences.ItalsofoundthattheInternetisavaluablelearningresourceandallformsoflearningcausechangeswithinthebrain.TherehavebeenreportsthattheuseoftheInternetwithitsvastresourcesofinformationischangingthewaypeoplethinkandaffectingtheirabilitytoconcentratE.ButNominetsaidthat’sscaremongering危言耸听andthemisinformationabouttheInternetusecanpotentiallydeny否定itsbenefitstopeopleinparticularparentswhoareworriedabouttheeffectsontheirchildren’sdevelopment.Thereportalsofoundthatsocialnetworkingsitesinthemselvesarenotaspecialsourceofrisktochildrenandaregenerallybeneficialastheysupportexistingfriendships.Inadditionplayingactionvideogamescanimprovesomevisualprocessingandmotorresponseskillswhilecomputer-basedactivityprovidesmentalstimulationandcanhelpslowratesofcognitivedeclinE.61.Whatdoesthepassagemainlytalkabout?A.FourinfiveparentsfeartheirchildrenwillbecomeFacebookaddicts.B.SocialnetworkingsitesmakepeoplemoresociablE.C.MoreandmorechildrenwillbecomeaddictedtoFacebook.D.TheInternethasthepowertorewiringbrains.62.WhatdoestheunderlinedphraseflyinthefaceofinParagraphfourprobablymean?A.Goagainst.B.Havealotincommonwith.C.Besimilarto.D.Havesomethingtodowith.63.Wecaninferfromthepassagethat_______.A.socialnetworkingsitessuchasFacebookandTwitterwillrewirechildren’sbrainsB.Dr.PaulHowardJonesisamemberoftheNominetTrustC.Dr.PaulHowardJonesthinkstheInternetisusefulandbeneficialD.thestudysurveyedapollof1000children64.AccordingtothepassagethestudycarriedbytheNominetTrustshowedthat_______.A.oneinthreeparentsbelievesFacebookhastheabilitytotakeovertheirchildren’slivesB.theInternetismoreeffectiveatrewiringourbrainsthanotherenvironmentalinfluencesC.fouroutoffiveparentsthinktheirchildrenareindangerofthewebD.eightypercentofparentsworrythattheirchildrenwillbecomeaddictedtoFacebook65.Thelastparagraphmainlytellspeople_______.A.playingactionvideogamescanimprovesomevisualprocessingandmotorresponseskillsB.theInternetinitselfisnotadangertochildrenbutgenerallybeneficialC.socialnetworkingsitesinthemselvessupportexistingfriendshipsD.computer-basedactivityprovidesmentalstimulationandcanhelpslowratesofcognitivedecline
AsimplepieceofclotheslinehangsbetweensomeenvironmentallyfriendlyAmericansandtheirneighbors.Ononesidestandthosewhoseeclothesdryers干衣机asawasteofenergyandamajorpolluteroftheenvironment.Asaresulttheyareturningtoclotheslinesaspartofthewhat-I–candoenvironmentalism环境保护主义.Ontheothersidearepeoplewhoareagainstdryingclothesoutsidearguingthatclotheslinesareunpleasanttolookat.TheyhavepersuadedHomeownersAssociationsHOAsaccesstheU.S.tobanoutdoorclotheslinesbecauseclotheslinedryingalsotendstolowerhomevalueintheneighborhooD.ThishadledtoaRight-to-DryMovementthatiscallingforlawstobepassedtoprotectpeople’srighttouseclotheslines.SofaronlythreestateshavelawstoprotectclotheslinE.Right-to-DrysupportersarguethatthereshouldbemorE.MattReck37isthekindofeco-conscious有生态意识的personwhofeedshistreeswithbathwaterandreuseswaterdropsfromhisairconditionerstowaterplants.HisfamilyalsousesaclotheslinE.ButonJuly92007theHOAinWakeForestNorthCarolinatoldhimthatadissatisfiedneighborhadtelephonedthemabouthimclotheslinE.TheReckspaidnoattentiontothewarningandstilldriedtheirclothesonalineintheyarD.Manypeoplesaytheyareenvironmentallyfriendlybuttheydon’ttakemattersintheirownhandssaysReck.ThelocalHOAhasdecidednottotakeanyactionunlessmoreneighborscometothem.NorthCarolinalawmakersaresayingthatbanningclotheslinesisnottherightthingtodo.ButHOAsandhousingbusinessesbelievethatclotheslinedryingremindspeopleofpoorneighborhoods.Theyworrythatifbuyersthinktheirfutureneighborscan’tevenafforddryershousingpriceswillfall.EnvironmentalistssaysuchworriesarenotnecessaryandinviewofglobalwarmingthatideaneedstochangE.AstheysayTheclotheslineisbeautiful.HangingclothesoutsideshouldbeencourageD.Weallhavetodoatleastsomethingtoslowdowntheprocessofglobalwarming.8.Oneofthereasonswhysupportersofclothesdryersaretryingtobanclotheslinedryingisthat____.A.clothesdryersaremoreefficientB.clotheslinedryingreduceshomevalueC.clothesdryersareenergy-savingD.clotheslinedryingisnotallowedinmostU.S.states9.WhichofthefollowingbestdescribesMattReck?A.Heisakind-heartedman.B.Heisanimpoliteman.C.Heisandexperiencedgardener.D.Heisamanofsocialresponsibility.10.Whoareinfavorofclotheslinedrying?A.housingbusinesses.B.Environmentalists.C.HomeownersAssociations.D.Reck’sdissatisfiedneighbors.11.Whatismainlydiscussedinthetext?A.Clotheslinedrying:awaytosaveenergyandmoney.B.Clotheslinedrying:alostartrediscovereD.C.Oppositeopinionsonclotheslinedrying.D.Differentvarietiesofclotheslines.
Whatdoyouknowaboutthesea?Weknowthatitlooksveryprettywhenthesunisshiningonit.WealsoknowthatitcanbeveryroughwhenthereisastrongwinD.Whatotherthingsdoweknowaboutit?Thefirstthingtorememberisthattheseaisverybig.WhenyoulookatthemapoftheworldyouwillfindthereismorewaterthanlanD.TheseacoversthreequartersoftheworlD.Theseaisalsoverydeepinsomeplaces.ItisnotdeepeverywherE.Somepartsoftheseaareveryshallow.Butinsomeplacesthedepthoftheseaisverygreat.ThereisonespotnearJapanwheretheseaisnearly11kilometersdeep!Thehighestmountainintheworldisabout9kilometershigh.Ifthatmountainwereputintotheseaatthatplacetherewouldbe2kilometersofwateraboveit!Whatadeepplace!Ifyouhaveswumintheseayouknowthatitissalty.Youcantastethesalt.RiverswhichflowintotheseacarrysaltfromthelandintotheseA.Somepartsoftheseaaresaltierthanotherparts.ThereisoneseacalledtheDeadSeawhichisverysalty.Itissosaltythatswimmerscannotsink!FishcannotliveintheDeadSea!Inmostpartsoftheseathereareplentyoffishandplants.SomelivenearthetopoftheseA.Otherslivedeepdown.TherearealsomillionsoftinylivingthingsthatfloatintheseA.Thesefloatingthingsaresosmallthatitishardtoseethem.Manyfishlivebyeatingthesefloatingthings.TheseacanbeverycolD.Diverswhogodeepdownintheseaknowthis.Onthetopthewatermaybewarm.Whenthedivergoesdownwardstheseabecomescolderandcolder.Anotherthinghappens.Whenthedivergoesdeeperthewaterabovepressesdownonhim.Itsqueezeshim.Thenthediverhastowearclothesmadeofmetal.Buthecannotgoverydeep.Somepeoplewhowantedtogoverydeepusedaverystrongdivingship!Theywentdowntothedeepestpartoftheseainit.Theywentdowntoadepthofelevenkilometers!66.Whendoesthesealookbeautiful?A.Whenitiscalm.B.WhentheweatherisfinE.C.WhenthereisastrongwinD.D.Whenthereisastorm.67.Howmuchoftheearth’ssurfacedoeslandcover?A.15%B.25%C.30%D.45%68.WhydoestheauthormentiontheseasomewherenearJapan?A.Toshowthattheseainsomeplacesisverydeep.B.Toshowthattheseainsomeplacesisveryshallow.C.Toshowthatitsdepthis9kilometersgreaterthantheheightofthehighestmountain.D.Toshowthatitsdepthis11kilometersgreaterthantheheightofthehighestmountain.69.WhichofthefollowingstatementsabouttheDeadSeaisNOTtrue?A.Thereareplentyoffishinit.B.Itisasafeplaceforswimmers.C.Itisextremelysalty.D.Nofishcanbefoundinit.70.Whycan’tpeoplegoverydeepinthesea?A.BecausethedeepestpartoftheseaisverycolD.B.Becausethedeepestpartoftheseaisveryrough.C.BecausethepressureofthewateratgreatdepthsisunendurablE.D.BecausefiercefishusuallylivetherE.
HaveyouevernoticedwhenyoursweatdriesitwillleavemarksonyourT-shirt?Themarksaretinybitsofsalt.Ifyougototheseasideyouwillknowthatseawaterdoesthesametoyourclothesbecauseitalsohasalotofsaltinit.Waterevaporatesfromthesurfaceoftheseabutthesaltremains.Haveyoueverthoughtaboutwhethertheseaswillkeepgettingsaltier?Theanswerisno.Theoceanshavestayedatabout3.5percentsaltcontentforhundredsofmillionsofyears.Itkeepsaconstantlevelofsaltindifferentways.PickupaseashellandweighitinyourhanD.Itisheavy.Allanimalsneedsodiumtoliveandmostneedcalciumtobuildboneanshells.Theseashelllikeallseaanimalsgetsitssodiumandcalciumfromseawater.WhenanimalsdietheirsaltislockedupinbinsandshellswhichdroptothebottomoftheseA.Seawaterandrocksreactwitheachothernotjustinoneway.Seasaltnotonlyreactswithrocksbutalsoreactswiththerocksoftheoceancrust壳andvolcaniclavA.ThereactionstakesomeofthesaltinseawaterawayfromtheseA.TheouterhardcrustoftheearthismadeupofaboutadozenhardplatesthatdriftonveryhotsoftrocklikefloatingislandsonaseA.Theheatwithintheearthisnotthesameeverywhereandtheplatesmovebecauseoftheheat.WhenanoceanplateknocksintoalandplatethethinnerlandplatefloatsovertheoceanonE.TheoceanfloorgetspushedunderanditssaltyrocksshellsandbonesarelostdeepwithinEarth.Sothat’swhytheseasaresaltybutdon’tgetanysaltier.57.WhatdoestheunderlinedwordevaporatesinParagraph3mean?A.turnsintosteamB.turnsintoasolidC.turnsintofreshwaterD.turnsintoice58.Fromthepassagewecanknowtheseashells________.A.getsomemineralsfromseawaterB.takesomesaltfromseawhenseawaterreactswithrocksC.reactwithrocksoftheoceancrustwhenplatesmoveD.absorbsaltwhentheplatesmove59.Howmanyreasonsdoesthewritermentionwhytheoceansstayatabout3.5％saltcontent?A.2B.3C.4D.560.What’sthepurposeoftheauthortowritethetext?A.WarningB.InformingC.EntertainingD.Describing
Mostpeoplethinkofracingwhentheyseegreyhounds灰狗andbelievetheyneedlotsofexercisE.Theycanactuallybequitelazy!Greyhoundsaregoodatfastracesbutnotlong-distancerunning.Theydoneedregularexercisebuttheyliketorunforashortburstandthengetbackonthebedoracomfortableseat.AnothermisunderstandingisthatgreyhoundsmustbeaggressivebecausetheyarebiginsizE.Infactgreyhoundslovepeopleandaregentlewithchildren.Greyhoundscanlivefor12–14yearsbutusuallyonlyracefortwoorthreeyearsandafterthattheymakegreatpets.Theydon’tneedalotofspacedon’tmakealotofnoiseanddon’teatalotfortheirsizE.Normallygreyhoundscanbeastallas90cm.Thereishoweverasmall-sizedgreyhoundwhichstandsonly33cm.Greyhoundscomeinavarietyofcolors.Greyandyellowish-brownarethemostcommon.OthersincludeblackwhiteblueredandbrownoramixofthesE.Greyhoundshavesmoothbodycoatslowbodyfatandareveryhealthy.Becausethey’reslimtheydon’thavethelegproblemslikeotherdogsthesameheight.ButtheydofeelthecoldespeciallysincetheywouldmuchratherbeathomeinbedthanwalkingaroundoutsidE.56.Thetextiswrittenmainly______.A.totellpeoplehowtoraisegreyhoundsB.toletpeopleknowmoreaboutgreyhoundsC.toexplainwhygreyhoundsareaggressiveD.todescribegreyhoundsofdifferentcolors57.Itcanbeinferredthatgreyhounds_______.A.lovebigdoghousesB.likestayinginbedalldayC.makethebestguarddogsD.needsomeexerciseoutdoors58.Whydoestheauthorsaythatgreyhoundsmakegreatpets?A.TheyarebiginsizE.B.TheyliveaverylonglifE.C.TheycanrunracesforsometimE.D.Theyarequietandeasytolookafter.59.Ifyoukeepapetgreyhounditisimportant________.A.tokeepitslimB.tokeepitwarmC.totakespecialcareofitslegsD.totakeittoanimaldoctorsregularly
Ifyouhaven’theardorseenanythingaboutRoadRageinthelastfewmonthsyou’veprobablybeenavoidingthemediA.Therehavebeencountlessstoriesaboutthisnewandscaryphenomenonconsideredatypeofaggressivedriving.YouhavemostlikelyencounteredaggressivedrivingorRoadRagerecentlyifyoudriveatall.Whiledrunkdrivingremainsacriticalproblemthefactsaboutaggressivedrivingaresurelyasdisturbing.ForinstanceaccordingtotheNationalHighwayTransportationSafetyAssociation41907peoplediedonthehighwaylastyear.Ofthosedeathstheagencyestimatesthatabouttwo-thirdswerecausedatleastinpartbyaggressivedrivingbehavior.Whyisthisphenomenonoccurringmorethanevernowandwhyisitsomethingthatseemedalmostnonexistentafewshortyearsago?Expertshaveseveraltheoriesandallareprobablypartiallycorrect.Onesuggestionissheerovercrowding.Inthelastdecadethenumberofcarsontheroadshasincreasedbymorethan11percentandthenumberofmilesdrivenhasincreasedby35percent.Howeverthenumberofnewroadmileshasonlyincreasedby1percent.Thatmeansmorecarsinthesameamountofspace;andtheproblemismagnifiedinurbanareas.Alsopeoplehavelesstimeandmorethingstodo.Withpeopleworkingandtryingtofitextrachoresandactivitiesintothedaystresslevelshaveneverbeenhigher.Stresscreatesanxietywhichleadstoshorttempers.ThesefactorswhencombinedincertainsituationscanspellRoadRagE.YoumaythinkyouarethelastpersonwhowoulddriveaggressivelybutyoumightbesurpriseD.Forinstancehaveyoueveryelledoutloudataslowerdriversoundedthehornlongandhardatanothercarorspeduptokeepanotherdriverfrompassing?Ifyourecognizeyourselfinanyofthesesituationswatchout!Whetheryouaregettingangryatotherdriversoranotherdriverisvisiblyupsetwithyoutherearethingsyoucandotoavoidanymajorconflict.IfyouareeasilyinfluencedbyRoadRagethekeyistodischargeyouremotioninahealthyway.Ifyouarethetargetofanotherdriver’sragedoeverythingpossibletogetawayfromtheotherdriversafelyincludingavoidingeyecontactandgettingoutoftheirway.63.ThefirstsentenceinParA.1impliesthat______.A.onemaybeangeredbymediareportsandwantstoavoidthemB.themediacoinedthetermRoadRageonlyafewmonthsagoC.RoadRagehasreceivedmuchmediacoverageinthelastfewmonthsD.peoplenotinterestedinthemediaknowlittleaboutrecenthappenings64.TheunderlinedwordspellinParA.3means________.A.relieveB.causeC.spreadD.prevent65.Whichofthefollowingcharacterizesaggressivedriving?A.Talkingwhiledriving.B.DrivingathighspeeD.C.Soundingthehornwhenpassing.D.Shoutingatanotherdriver.66.Thelastparagraphisintendedto_________.A.tellpeoplehowtodealwithRoadRageB.informpeoplehowaggressivedriverscouldbeC.showpeoplehowtocontrolthemselveswhenangryD.warnpeopleagainsteyecontactwithanotherdriver
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